Module dialect 

Structs

CitadelDialect

PG-superset dialect: delegates every method to PostgreSqlDialect and adds the @?_tz / @@_tz infix operators (tokenized as [AtQuestion|AtAt, Word("_tz")], stitched via parse_infix into BinaryOperator::Custom).

Functions

parse_expr

parse_statements

Falls back to GenericDialect only for SQLite-style quirks PG rejects (e.g. TRIM(s, c)).